2. Solved Papers
  3. Uttarakhand PMT

Uttarakhand PMT Uttarakhand PMT Solved Paper-2010

  • question_answer
    Which of the following is applied in this reaction? \[C{{H}_{3}}CHBrC{{H}_{2}}C{{H}_{3}}\xrightarrow[{}]{Alc.\,KOH}\] (i) \[C{{H}_{3}}CH=CHC{{H}_{3}}\]major product (ii)\[C{{H}_{2}}=CHC{{H}_{2}}C{{H}_{3}}\]minor product

    A)  Hermanns rule  

    B)  Kharasch effect

    C)  Saytzeffs rule   

    D)  Markownikoffs rule

    Correct Answer: C

    Solution :

     \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  Br \end{smallmatrix}}{\mathop{CH}}\,-C{{H}_{2}}C{{H}_{3}}\xrightarrow[{}]{Alc.KOH}\] \[\underset{(major\text{ }product)}{\mathop{C{{H}_{3}}CH=CHC{{H}_{3}}}}\,+\underset{(minor\text{ }product)}{\mathop{C{{H}_{2}}=CHC{{H}_{2}}C{{H}_{3}}}}\,\] The elimination takes place according to Saytzeffs rule which states that more substituent alkene is the major products.


You need to login to perform this action.
You will be redirected in 3 sec spinner